US1544134A - Blade construction for paddle wheels - Google Patents
Blade construction for paddle wheels Download PDFInfo
- Publication number
- US1544134A US1544134A US728182A US72818224A US1544134A US 1544134 A US1544134 A US 1544134A US 728182 A US728182 A US 728182A US 72818224 A US72818224 A US 72818224A US 1544134 A US1544134 A US 1544134A
- Authority
- US
- United States
- Prior art keywords
- paddle wheels
- blade construction
- blade
- paddle
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/04—Propulsive elements directly acting on water of rotary type with rotation axis substantially at right angles to propulsive direction
Definitions
- This invention relates to new and useful improvements 'in blade construction in paddle wheels has for its principal ob ject to provide a simple and efficient means for preventing eddy current as the blades of the paddle wheel strike the water.
- a further object of the invention is to provide a blade construction for paddle wheels of the above mentioned character, which will permit the blades of the paddle wheel to pass through the water without causing any great amount of disturbance and for increasing the propulsion of the vessel on which the paddle wheelis mounted.
- a further object of the invention is to provide a blade construction for paddle wheels of the above mentioned character, which is simple in construction, inexpensive, strong and durable and furthermore adapted for the purpose for which it is designated.
- Figure 1 is a front elevation of my improved blade construction.
- Figure 2 is a side elevation thereof
- Figure 3 is a transverse section taken approximately on line 3-3 of Figure 1.
- the numeral 1 designates generally my improved blade for use in connection with paddle wheels, the same being substantially diamond shaped in cross section as is clearly illustrated in Figure 8.
- the front faces 2 and 3 respectively of the blade 1 are slightly concaved as are also the rear faces 4E and 5 respectively.
- a blade construction of the character above described be used in connection with paddle wheels but may be also used as a swimming appliance for creating a greater amount of energy than is ordinarily obtained by the hands of the swimmer.
- a blade for paddle wheels the same being substantially diamond shaped in cross section, the faces thereof being concaved, the apex of the front faces being nearer the longitudinal center than the apex of the rear faces.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
June 30, 1925. 1,544,134
.1. A. DAVID BLADE CONSTRUCTION FOR PADDLE WHEELS Filed Juiy 2 19 24 g 4m ii.
V WV
-Z 6 ffifid/vzd Patented June 30, 1925.
UNITED STATES JOSEPH A. DAVID, OF ELIZABETH, NEW JERSEY.
BLADE CONSTRUCTION FOB, PADDLE WHEELS.
. Application filed July 25, 1924. Serial No. 728,182.
To all whom it may concern:
Be it known that I, Josurn A. DAVID, a citizen of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in a Blade Construction for Paddle Wheels, of which the following is a specification.
This invention relates to new and useful improvements 'in blade construction in paddle wheels has for its principal ob ject to provide a simple and efficient means for preventing eddy current as the blades of the paddle wheel strike the water.
A further object of the invention is to provide a blade construction for paddle wheels of the above mentioned character, which will permit the blades of the paddle wheel to pass through the water without causing any great amount of disturbance and for increasing the propulsion of the vessel on which the paddle wheelis mounted.
A further object of the invention is to provide a blade construction for paddle wheels of the above mentioned character, which is simple in construction, inexpensive, strong and durable and furthermore adapted for the purpose for which it is designated.
Other objects and advantages of this invention will become apparent during the course of the following description.
in the accompanying drawing forming a part of this specification and in which like numerals designate like parts throughout the same:
Figure 1 is a front elevation of my improved blade construction.
Figure 2 is a side elevation thereof, and
Figure 3 is a transverse section taken approximately on line 3-3 of Figure 1.
In the drawing wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates generally my improved blade for use in connection with paddle wheels, the same being substantially diamond shaped in cross section as is clearly illustrated in Figure 8. The front faces 2 and 3 respectively of the blade 1 are slightly concaved as are also the rear faces 4E and 5 respectively.
ing than the apex 8 of the rear faces 4: and 5.
The paddle wheel blades now universally 1n use are flat on their opposite sides and in this use a blade construction of this char.
acter often results in disturbing the flow of water in the back of the blade whereby a considerable amount of energy is wasted. By providing a blade construction of the character shown and above described, the eddy currents will be reduced and permit the blades of the paddle wheels to pass through the water without causing any disturbance in the rear of each blade. Furthermore, by having the faces of the blades substantially concaved, theflow of water will be smoothened but it will be necessary to have the front faces of the blade of less inclination than the rear faces, in order that the blades will be efiicient in carrying out the purposes for which the same is designated.
Notonly can a blade construction of the character above described be used in connection with paddle wheels but may be also used as a swimming appliance for creating a greater amount of energy than is ordinarily obtained by the hands of the swimmer.
While I have shown the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention and the scope of the appended claim.
Having thus described the invention, what I claim is In a blade for paddle wheels, the same being substantially diamond shaped in cross section, the faces thereof being concaved, the apex of the front faces being nearer the longitudinal center than the apex of the rear faces.
In testimony whereof I afiix my signature.
JOSEPH A. DAVID.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US728182A US1544134A (en) | 1924-07-25 | 1924-07-25 | Blade construction for paddle wheels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US728182A US1544134A (en) | 1924-07-25 | 1924-07-25 | Blade construction for paddle wheels |
Publications (1)
Publication Number | Publication Date |
---|---|
US1544134A true US1544134A (en) | 1925-06-30 |
Family
ID=24925750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US728182A Expired - Lifetime US1544134A (en) | 1924-07-25 | 1924-07-25 | Blade construction for paddle wheels |
Country Status (1)
Country | Link |
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US (1) | US1544134A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2580428A (en) * | 1945-07-10 | 1952-01-01 | Herbert M Heuver | Cycloidal rotor for aircraft |
US5554006A (en) * | 1995-08-03 | 1996-09-10 | Liao; Hsien-Chin | Ceiling fan blade configuration having a concave blade periphery |
-
1924
- 1924-07-25 US US728182A patent/US1544134A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2580428A (en) * | 1945-07-10 | 1952-01-01 | Herbert M Heuver | Cycloidal rotor for aircraft |
US5554006A (en) * | 1995-08-03 | 1996-09-10 | Liao; Hsien-Chin | Ceiling fan blade configuration having a concave blade periphery |
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